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Finding the Fourth Proportional to 353,485.94, 530,148.96 and 100,761.03

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Solution

The fourth proportional to 353,485.94, 530,148.96 and 100,761.03 is: 151,118.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,485.94 : 530,148.96 = 100,761.03 : x
  2. Step 2: Convert to fraction form
    353,485.94/530,148.96 = 100,761.03/x
  3. Step 3: Cross multiply
    353,485.94x = 530,148.96 × 100,761.03
  4. Step 4: Simplify right side
    353,485.94x = 53,418,355,263.03
  5. Step 5: Solve for x
    x = 53,418,355,263.03/353,485.94
  6. Step 6: Final answer
    x = 151,118.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.